ASTM E2425-21

Standard Test Method for Loss Modulus Conformance of Dynamic Mechanical Analyzers

SIGNIFICANCE AND USE
5.1 This test method demonstrates conformity of a dynamic mechanical analyzer at an isothermal temperature of 21 °C.  
5.2 Dynamic mechanical analysis experiments often use linear temperature change. This test method does not address the effect of that change in temperature on the loss modulus.  
5.3 This test method may be used in research and development, specification acceptance, and quality control or assurance.
SCOPE
1.1 This test method describes the performance confirmation or measurement of conformance for the loss modulus scale of a commercial or custom-built dynamic mechanical analyzer (DMA) at 21 °C using ultra-high molecular weight polyethylene as a reference material.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Sep-2021
• ICS: 25.040.40 - Industrial process measurement and control
• Technical Committee: E37 - Thermal Measurements
• Drafting Committee: E37.10 - Fundamental, Statistical and Mechanical Properties

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E2425 − 21
Standard Test Method for
Loss Modulus Conformance of Dynamic Mechanical
1
Analyzers
This standard is issued under the fixed designation E2425; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
3.1 Definitions—Specific technical terms used in this test
1.1 This test method describes the performance confirma-
method are defined inTerminologies D4092, E473, and E1142,
tionormeasurementofconformanceforthelossmodulusscale
including Celsius, dynamic mechanical analysis, and loss
of a commercial or custom-built dynamic mechanical analyzer
modulus.
(DMA) at 21 °C using ultra-high molecular weight polyethyl-
ene as a reference material.
4. Summary of Test Method
1.2 The values stated in SI units are to be regarded as
4.1 The loss modulus signal measured by a dynamic me-
standard. No other units of measurement are included in this
chanical analyzer for an elastic material is compared to the
standard.
reported loss modulus for that reference material. A linear
relationship is used to correlate the experimental loss modulus
1.3 This standard does not purport to address all of the
signal with the reported value of the reference material.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4.2 The mode of deformation (for example, tensile, flexure,
priate safety, health, and environmental practices and deter-
compression, shear, etc.) shall be reported.
mine the applicability of regulatory limitations prior to use.
5. Significance and Use
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
5.1 This test method demonstrates conformity of a dynamic
ization established in the Decision on Principles for the
mechanical analyzer at an isothermal temperature of 21 °C.
Development of International Standards, Guides and Recom-
5.2 Dynamic mechanical analysis experiments often use
mendations issued by the World Trade Organization Technical
linear temperature change. This test method does not address
Barriers to Trade (TBT) Committee.
the effect of that change in temperature on the loss modulus.
5.3 This test method may be used in research and
2. Referenced Documents
development, specification acceptance, and quality control or
2
2.1 ASTM Standards:
assurance.
D4092 Terminology for Plastics: Dynamic Mechanical
Properties
6. Apparatus
E473 Terminology Relating to Thermal Analysis and Rhe-
6.1 The essential instrumentation required to provide the
ology
minimum dynamic mechanical capability for this test method
E1142 Terminology Relating to Thermophysical Properties
includes:
E1867 Test Methods for Temperature Calibration of Dy-
6.1.1 Drive Actuator, to apply force (or displacement) to the
namic Mechanical Analyzers
specimen in a periodic manner. This actuator may also be
capable of providing static force or displacement to the
specimen.
1
This test method is under the jurisdiction ofASTM Committee E37 on Thermal
6.1.2 Coupling Shaft, or other means to transmit the force
Measurements and is the direct responsibility of Subcommittee E37.10 on
from the motor to the specimen.
Fundamental, Statistical and Mechanical Properties.
6.1.3 Clamping System(s), to fix the specimen between the
Current edition approved Oct. 1, 2021. Published October 2021. Originally
drive shaft and the stationary clamp(s).
approved in 2005. Last previous edition approved in 2016 as E2425 – 16. DOI:
10.1520/E2425-21.
6.1.4 Position Sensor, to measure the change in position of
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the specimen during dynamic motion, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6.1.5 Force Sensor, to measure the force developed by the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. specimen.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2425 − 21
6.1.6 Temperature Sensor, to provide an indication of the specimen(s). Unless otherwise indicated the temperature con-
specimen temperature to within 61 °C. dition shall be isothermal at 21 °C 6 1 °C (that is, between
6.1.7 Furnace, to provide controlled heating or cooling of a 20 °C and 22 °C).
specimen at a constant temperatur
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E2425 − 16 E2425 − 21
Standard Test Method for
Loss Modulus Conformance of Dynamic Mechanical
1
Analyzers
This standard is issued under the fixed designation E2425; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*Scope
1.1 This test method describes the performance confirmation or measurement of conformance for the loss modulus scale of a
commercial or custom-built dynamic mechanical analyzer (DMA) at 21°C 21 °C using ultra-high molecular weight polyethylene
as a reference material.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 There is no ISO standard equivalent to this test method.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and to determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D4092 Terminology for Plastics: Dynamic Mechanical Properties
E473 Terminology Relating to Thermal Analysis and Rheology
E1142 Terminology Relating to Thermophysical Properties
E1867 Test Methods for Temperature Calibration of Dynamic Mechanical Analyzers
3. Terminology
3.1 Definitions—Specific technical terms used in this test method are defined in Terminologies D4092, E473, and E1142, including
Celsius, dynamic mechanical analysis, and loss modulus.
1
This test method is under the jurisdiction of ASTM Committee E37 on Thermal Measurements and is the direct responsibility of Subcommittee E37.10 on Fundamental,
Statistical and Mechanical Properties.
Current edition approved June 1, 2016Oct. 1, 2021. Published June 2016October 2021. Originally approved in 2005. Last previous edition approved in 20112016 as
E2425 – 11.E2425 – 16. DOI: 10.1520/E2425-16.10.1520/E2425-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2425 − 21
4. Summary of Test Method
4.1 The loss modulus signal measured by a dynamic mechanical analyzer for an elastic material is compared to the reported loss
modulus for that reference material. A linear relationship is used to correlate the experimental loss modulus signal with the reported
value of the reference material.
4.2 The mode of deformation (for example, tensile, flexure, compression, shear, etc.) shall be reported.
5. Significance and Use
5.1 This test method demonstrates conformity of a dynamic mechanical analyzer at an isothermal temperature of 21°C.21 °C.
5.2 Dynamic mechanical analysis experiments often use linear temperature change. This test method does not address the effect
of that change in temperature on the loss modulus.
5.3 This test method may be used in research and development, specification acceptance, and quality control or assurance.
6. Apparatus
6.1 The essential instrumentation required to provide the minimum dynamic mechanical capability for this test method includes:
6.1.1 Drive Actuator, to apply force (or displacement) to the specimen in a periodic manner. This actuator may also be capable
of providing static force or displacement to the specimen.
6.1.2 Coupling Shaft, or other means to transmit the force from the motor to the specimen.
6.1.3 Clamping System(s), to fix the specimen between the drive shaft and the stationary clamp(s).
6.1.4 Position Sensor, to measure the change in position of the specimen during dynamic motion, or
6.1.5 Force Sensor, to measure the force developed by the spec
...